Overall satisfaction


Acquired: Breeder,
Bred invertebrate myself

Gender: N/A





Easy to handle




Easy to keep






Fruit Flies


United States

Posted Apr 19, 2015

The Drosophila melanogaster is a fruit fly commonly fed to baby lizards, baby toads, poison dart frogs, insect eating plants and aquarium fish like Gouramis, Bubble Nesting Bettas, Apistogrammas, Epilaty Killifish, Corydoras and White Clouds. They can grow to be about ¼” in length. There is a difference between flightless and wingless fruit flies. The flightless fruit flies have wings, but they cannot fly. The wingless fruit flies don’t have wings, cannot fly and resemble small ants, but they are not. They can move quickly and you must be fast and replace the lid on your container or else they will all get out. Tapping the container will sometimes cause them to fall to the bottom of the container but they will quickly climb back up to the top in an effort to escape. So, be sure that your lid is properly secured and in place.

When keeping fruit flies, select a dark area in your room to keep your culturing container. Keep them at room temperature away from cool spots and drafts. You do not need to feed them once your container is set-up. When culturing them, choose a heavy duty 32 oz. deli container with a secure insect lid. You do not need to make any holes in the container since the insect lid will allow air to flow through.

You may use a commercial medium or make-up a homemade mixture of about ½ c. mashed potatoes, ¾ c. water, 1 tbsp. sugar and a mold inhibitor. Add more or less mashed potatoes to thicken your medium. It shouldn’t be runny. Allow your medium to sit overnight to stiffen. Add 4-5 micro pellets of yeast on the surface. Don’t mix yeast into your medium. Add Excelsior or Coffee Filter Paper on the surface of the medium for your flies to climb on.

The mature fruit flies will lay eggs that will hatch into fruit fly maggots. The maggots will crawl into that mash potato medium that I mentioned earlier and they will feed and grow there, then crawl up the sides of the container and pupate before becoming mature fruit flies and they will then mate and start the cycle all over again.

When you are ready to harvest your fruit flies, you can place your container in a fridge for a few seconds to slow down the movement of your flies, remove them from the fridge, quickly remove the lid and place your flies where you need them. Removing the larvae is a little more complicated because you’ll need to transfer your flies into a temporary holding container so that you can remove the larvae with a popsicle stick. When done, replace your flies.

Sub-Culture your fruit flies every 2 ½ to 3 weeks.

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